The Popular Social Party (Greek: Λαϊκό Κοινωνικό Κόμμα) was a Greek political party that formed after a split from the People's Party. It was founded in January 1956 by Stefanos Stefanopoulos.The Popular Social Party participated in the elections of 1956 but failed to enter the parliament. In the elections of 1958 it participated with other right-wing in the Union of Populars and elected 2 MPs.